Japan's National Institute of Advanced Industrial Science and Technology has developed the world's first 3D television system that allows users to touch, pinch or poke images floating in front of them.
Senior scientist Norio Nakamura is reported as saying " You can have the sense of touch like poking a rubber ball or stretching a sticky rice cake".
Like many good ideas this one does not yet have any practical application as yet but it looks promising in the field of surgery and as an aid for the vision impaired,
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